Display device

Abstract

Disclosed is a display device. The display device of the present disclosure may comprise: a display panel; a frame located behind the display panel; a substrate positioned between the display panel and frame, and coupled to the latter; and a heat dissipation plate positioned between and coupled to the substrate and frame, wherein the substrate comprises a plurality of long first plates distanced from each other, and a fastening surface provided on the front surface of at least one of the plurality of first plates, and the heat dissipation plate may comprise one or more protrusions that protrude forward to come in contact with the fastening surface to be fastened to at least one of the plurality of first plates.

Description

display device

[0001] The present disclosure relates to a display device.

[0002] As the information society develops, the demand for display devices is also increasing in various forms, and in response to this, various display devices such as LCD (Liquid Crystal Display Device), PDP (Plasma Display Panel), ELD (Electro luminescent Display), VFD (Vacuum Fluorescent Display), and OLED (Organic Light Emitting Diode) are being researched and used in recent years.

[0003] Among these, the LCD panel has a TFT substrate and a color substrate facing each other with a liquid crystal layer and a liquid crystal layer interposed between them, and can display an image using light provided from a backlight unit.

[0004] As the picture quality provided by recent display devices has advanced to high definition, research is also actively being conducted on substrates on which light sources such as LEDs are mounted, and structures for fixing the substrates to heat sinks or frames.

[0005] The present disclosure aims to solve the above-mentioned and other problems.

[0006] Another purpose may be to provide a display device in which the substrate can be rigidly secured to a heat sink or frame.

[0007] Another purpose may be to provide a display device in which the substrate can be secured to a heat sink or frame without using a separate structure or adhesive layer.

[0008] Another purpose may be to provide a display device that can ensure ease of assembly of the substrate to a heat sink or frame.

[0009] Another purpose may be to provide a display device that can minimize damage to the substrate that may occur during the substrate assembly process.

[0010] Another purpose may be to provide a display device that can strengthen the grounding of the substrate and reduce EMI generation.

[0011] According to one aspect of the present disclosure for achieving the above or other purposes, a display device includes: a display panel; a frame positioned at the rear of the display panel; a substrate positioned between the display panel and the frame and coupled to the frame; and a heat sink positioned between the substrate and the frame and coupled to the substrate and the frame; wherein the substrate includes a plurality of first plates that are elongated and spaced apart from each other; and a fastening surface provided on a front surface of at least one of the plurality of first plates; and the heat sink may include at least one protrusion that protrudes forward and contacts the fastening surface to be fastened to at least one of the first plates.

[0012] The effects of the display device according to the present disclosure are described as follows.

[0013] According to at least one of the embodiments of the present disclosure, a display device can be provided in which a substrate can be firmly fixed to a heat sink or frame.

[0014] According to at least one of the embodiments of the present disclosure, a display device can be provided in which a substrate can be secured to a heat sink or frame without using a separate structure or adhesive layer.

[0015] According to at least one of the embodiments of the present disclosure, a display device can be provided that can ensure ease of assembly of a substrate to a heat sink or frame.

[0016] According to at least one of the embodiments of the present disclosure, a display device can be provided that can minimize damage to a substrate that may occur during the substrate assembly process.

[0017] According to at least one of the embodiments of the present disclosure, a display device capable of strengthening grounding of a substrate and reducing EMI generation can be provided.

[0018] Further scope of the applicability of the present disclosure will become apparent from the detailed description below. However, since various modifications and variations within the spirit and scope of the present disclosure will become apparent to those skilled in the art, it should be understood that the detailed description and specific examples, such as preferred embodiments of the present disclosure, are given by way of example only.

[0019] Figures 1 to 14 are drawings illustrating examples of display devices according to embodiments of the present disclosure.

[0020] Hereinafter, embodiments disclosed in this specification will be described in detail with reference to the attached drawings. Regardless of the drawing numbers, identical or similar components are given the same reference numbers and redundant descriptions thereof will be omitted.

[0021] The suffixes "module" and "part" used for components in the following description are given or used interchangeably only for the convenience of writing specifications, and do not have distinct meanings or roles in themselves.

[0022] In addition, when describing the embodiments disclosed in this specification, if it is determined that a detailed description of a related known technology may obscure the gist of the embodiments disclosed in this specification, the detailed description thereof will be omitted. In addition, the attached drawings are only intended to facilitate easy understanding of the embodiments disclosed in this specification, and the technical ideas disclosed in this specification are not limited by the attached drawings, and should be understood to include all modifications, equivalents, and substitutes included in the spirit and technical scope of the present disclosure.

[0023] Terms that include ordinal numbers, such as first, second, etc., may be used to describe various components, but the components are not limited by these terms. These terms are used solely to distinguish one component from another.

[0024] When a component is referred to as being "connected" or "connected" to another component, it should be understood that it may be directly connected or connected to that other component, but that there may be other components intervening. Conversely, when a component is referred to as being "directly connected" or "connected" to another component, it should be understood that there are no other components intervening.

[0025] Singular expressions include plural expressions unless the context clearly indicates otherwise.

[0026] In this application, terms such as “include” or “have” are intended to specify the presence of a feature, number, step, operation, component, part or combination thereof described in the specification, but should be understood not to exclude in advance the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts or combinations thereof.

[0027]

[0028] Referring to FIG. 1, a display device (1) may include a display panel (10). The display panel (10) may display a screen.

[0029] The display device (1) may include a first long side (First Long Side, LS1), a second long side (Second Long Side, LS2) opposite to the first long side (LS1), a first short side (First Short Side, SS1) adjacent to the first long side (LS1) and the second long side (LS2), and a second short side (Second Short Side, SS2) opposite to the first short side (SS1). Meanwhile, for convenience of explanation, the lengths of the first and second long sides (LS1, LS2) are illustrated and described as being longer than the lengths of the first and second short sides (SS1, SS2), but it may also be possible for the lengths of the first and second long sides (LS1, LS2) to be approximately equal to the lengths of the first and second short sides (SS1, SS2).

[0030] The direction parallel to the long sides (LS1, LS2) of the display device (1) may be referred to as the left-right direction or the first direction (DR1). The direction parallel to the short sides (SS1, SS2) of the display device (1) may be referred to as the up-down direction or the second direction (DR2). The direction perpendicular to the long sides (LS1, LS2) and short sides (SS1, SS2) of the display device (1) may be referred to as the front-back direction or the third direction (DR3).

[0031] The direction in which the display panel (10) displays an image may be referred to as the front (F, z), and the opposite direction may be referred to as the rear (R). The first long side (LS1) may be referred to as the upper side (U, y). The second long side (LS2) may be referred to as the lower side (D). The first short side (SS1) may be referred to as the left side (Le, x). The second short side (SS2) may be referred to as the right side (Ri).

[0032] The first long side (LS1), the second long side (LS2), the first short side (SS1), and the second short side (SS2) may be referred to as edges of the display device (1). In addition, the point where the first long side (LS1), the second long side (LS2), the first short side (SS1), and the second short side (SS2) meet each other may be referred to as a corner.

[0033] For example, the point where the first short side (SS1) and the first long side (LS1) meet can be called the first corner (C1). The point where the first long side (LS1) and the second short side (SS2) meet can be called the second corner (C2). The point where the second short side (SS2) and the second long side (LS2) meet can be called the third corner (C3). The point where the second long side (LS2) and the first short side (SS1) meet can be called the fourth corner (C4).

[0034]

[0035] Referring to FIG. 2, the display device may include a display panel (10), a side frame (20), a backlight unit, a frame (80), and a back cover (90).

[0036] The display panel (10) can form the front surface of a display device and display an image. The display panel (10) can display an image by having a plurality of pixels output RGB (Red, Green, or Blue) for each pixel in accordance with the timing. The display panel (10) can be divided into an active area where an image is displayed and a de-active area where an image is not displayed. The display panel (10) can include a front substrate and a rear substrate that face each other with a liquid crystal layer therebetween. The display panel (10) can be referred to as an LCD panel.

[0037] The front substrate may include a plurality of pixels composed of red, green, and blue sub-pixels. The front substrate may output light corresponding to the color red, green, or blue according to a control signal.

[0038] The rear substrate may include switching elements. The rear substrate may switch the pixel electrode. For example, the pixel electrode may change the molecular arrangement of the liquid crystal layer according to a control signal input from an external source. The liquid crystal layer may include liquid crystal molecules. The arrangement of the liquid crystal molecules may change in response to a voltage difference generated between the pixel electrode and the common electrode. The liquid crystal layer may transmit light provided from the backlight unit to the front substrate or block it.

[0039] The side frame (20) may extend along the perimeter of the display panel (10). The side frame (20) may cover a side surface of the display panel (10). The side frame (20) may be coupled to the display panel (10) and may support the display panel (10). The side frame (20) may be referred to as a guide panel.

[0040] The backlight unit may be located at the rear of the display panel (10). The backlight unit may be coupled to the frame (80) at the front of the frame (80). The backlight unit may be driven by a full driving method or a partial driving method such as local dimming or impulsive. The backlight unit may include light sources (51) that provide light to the front, a substrate (40) on which the light sources (51) are mounted, lenses (53) that cover the light sources (51), a reflective sheet (60) that covers the front of the substrate (40), and an optical layer (30) that is located in front of the reflective sheet (60).

[0041] The light source (51) may be a light emitting diode (LED) chip or a package including at least one LED chip. For example, the light source (51) may be a colored LED that emits at least one color, such as red, blue, or green, or a white LED. For example, the light source (51) may be a mini LED. A power supply (not shown) of the display device may provide power to the light source (51) through the substrate (40).

[0042] Each of the plurality of lenses (53) can cover each of the plurality of light sources (51). A receiving portion (not shown) can be formed on a lower surface of the lens (53) and can surround the light source (51). A dome portion (not shown) can form an upper surface of the lens (53) and can have an approximately hemispherical shape. The lens (53) can include at least one of silicone, polymethyl methacrylate (PMMA), and polycarbonate (PC). Light provided from the light source (51) can be refracted or reflected by the lens (53) and spread at a wider angle than the light source (51).

[0043] The reflective sheet (60) may include at least one of a metal and a metal oxide, which are reflective materials. For example, the reflective sheet (60) may include a metal and / or metal oxide having a high reflectivity, such as at least one of aluminum (Al), silver (Ag), gold (Au), and titanium dioxide (TiO2). For example, a resin may be deposited or applied on the reflective sheet (60) and may diffuse light from the light source (51).

[0044] The optical layer (30) may face the display panel (10) with respect to the side frame (20). The optical layer (30) may evenly transmit light from a light source (51) to the display panel (10). The optical layer (30) may include a diffusion plate (31) and an optical sheet (32).

[0045] A diffuser (31) may be positioned between a reflective sheet (60) and an optical sheet (32). The diffuser (31) may diffuse light from a light source (51). In addition, an air gap may be formed between the reflective sheet (60) and the diffuser (31). The air gap may function as a buffer, and the light from the light source (51) may be widely spread by the air gap.

[0046] The supporter (39) can be positioned between the reflective sheet (60) and the diffuser plate (31), and one side can be coupled to at least one of the heat sink (83) and the frame (80), and the other side can support the diffuser plate (31). The supporter (39) can be referred to as a spacer.

[0047] The optical sheet (32) may be adjacent to or in contact with the front surface of the diffusion plate (31). The optical sheet (32) may include at least one sheet. For example, the optical sheet (32) may include a plurality of sheets having different functions, and the plurality of sheets may be adhered or closely attached to each other. For example, the first optical sheet (32a) may be a diffusion sheet, and the second optical sheet (32b) may be a prism sheet. The diffusion sheet may prevent light from being partially concentrated from the diffusion plate (31) to uniformly distribute the light. The prism sheet may collect the light from the diffusion sheet and provide it to the display panel (10). At this time, the number and / or positions of the diffusion sheet and the prism sheet may be changed.

[0048] For example, the optical sheet (32) can change the wavelength or color of light provided from the light source (51). For example, the optical sheet (32) can include a red series phosphor and / or a green series phosphor. In this case, the light source (51) can provide blue series light, and the optical sheet (32) can change the light of the light source (51) to white. The optical sheet (32) can be referred to as a QD sheet (Quantum Dot Sheet).

[0049] The frame (80) may be positioned at the rear of the backlight unit. The display panel (10), the side frame (20), and the backlight unit may be coupled to the frame (80). The frame (80) may support the components of the display device described above and below. For example, the frame (80) may include a metal material such as an aluminum alloy. The frame (80) may be referred to as a main frame, a module cover, or a cover bottom.

[0050] The back cover (90) can cover the rear of the frame (80) and can be joined to the frame (80). For example, the back cover (90) can be an injection-molded resin material. As another example, the back cover (90) can include a metal material.

[0051]

[0052] Referring to FIG. 3, the frame (80) may include a flat portion (81). The flat portion (81) may form a central region of the frame (80). A heat sink (83) may cover the front of the flat portion (81) and may be coupled to the flat portion (81). The front of the heat sink (83) may be formed as a flat plane, and a protrusion (84) protruding forward may be formed on the front. The protrusion (84) may be in contact with a portion of the substrate (40) and may be coupled to a portion of the substrate (40). The heat sink (83) may include a metal material such as an aluminum alloy.

[0053] A plurality of mounts (839) may be formed on the front surface of the heat sink (83). The plurality of mounts (839) may be formed in each of a plurality of regions (83A1, 83A2, 83A3, 83A4, 83A5, 83A6, 83A7, 83A8, 83A9) of the heat sink (83) (see FIG. 4). The plurality of mounts (839) may be arranged symmetrically in the vertical direction and the left-right direction. In this case, each of the plurality of supporters (39) may be coupled to each of the plurality of mounts (839). The number and arrangement of the supporters (39) provided in the display device may be variably determined in consideration of the size of the display device, the installation environment, etc.

[0054] As another example, the display device may not be provided with a heat sink (83). A protrusion (84) protruding forward from the front surface of the flat portion (81) of the frame (80) may be formed on the flat portion (81). A plurality of mounts (839) may be formed on the frame (80). The protrusion (84) may be fastened to the substrate (40) by contacting a portion of the substrate (40).

[0055] For convenience, the protrusion (84) and the mount (839) are described as being formed on the front surface of the heat sink (83). However, the features related to the protrusion (84) and the mount (839) described below can be equally applied even when the protrusion (84) and the mount (839) are formed on the frame (80).

[0056] The side portion (70) may be positioned at the edge of the heat sink (83). The side portion (70) may include at least one of a metal and a metal oxide that is a reflective material. For example, the side portion (70) may include a metal and / or metal oxide having a high reflectivity, such as at least one of aluminum (Al), silver (Ag), gold (Au), and titanium dioxide (TiO2). For example, a resin may be deposited or applied on the side portion (70).

[0057] And, the side portion (70) may include a first side portion (71), a second side portion (72), a third side portion (73), and a fourth side portion (74). The side portion (70) may be referred to as a chamfer portion.

[0058]

[0059] Referring to FIGS. 4 and 5, the substrate (40) may cover the front of the heat sink (83) and may be coupled to the heat sink (83). For example, the substrate (40) may include at least one of polycarbonate (PC), polyethylene terephthalate (PET), glass, and silicon. The substrate (40) may be a printed circuit board (PCB).

[0060] The substrate (40) may have an overall fork shape. The substrate (40) may include straps. The straps may be referred to as first plates. The straps (412, 422) may extend long in the horizontal direction. For example, the straps (422) included in the substrate (42) may extend long in the horizontal direction, but may have a shape that is bent in a zigzag shape in a direction crossing the horizontal direction (see FIG. 6). For example, the straps (412) included in the substrate (41) may extend long in a straight shape in the horizontal direction (see FIG. 11). The straps may be spaced apart from each other in the vertical direction. In this specification, the substrate (41) and the substrate (42) are distinguished by their drawing symbols according to the shape of the straps, but both the substrates (41, 42) are embodiments of the substrate (40) and include the characteristics of the substrate (40) described in this specification.

[0061] The substrate (40) may include a second plate (411, 421) and a plurality of first plates (412, 422). The second plate (411, 421) may extend vertically. The plurality of first plates (412, 422) may extend horizontally from one long side of the second plate (411, 421) and may be spaced apart from each other in the vertical direction.

[0062] The substrate (40) may be provided in at least one form. The substrate (40) may include a plurality of adjacent substrates (41a, 41b, 41c, 41d, 41e, 41f, 41g, 41h, 41i). The first substrate (41a), the second substrate (41b), the third substrate (41c), the fourth substrate (41d), the fifth substrate (41e), the sixth substrate (41f), the seventh substrate (41g), the eighth substrate (41h), and the ninth substrate (41i) may be arranged on an imaginary horizontal plane (i.e., the XY plane). Each of the plurality of substrates (41a, 41b, 41c, 41d, 41e, 41f, 41g, 41h, 41i) can be coupled to each of the plurality of regions (83A1, 83A2, 83A3, 83A4, 83A5, 83A6, 83A7, 83A8, 83A9) of the heat sink (83).

[0063] Each of the plurality of lenses (53) can cover each of the plurality of light sources (51) mounted on the substrate (40). The power supply (not shown) of the display device can supply power to the light sources (51) through connectors (not shown) mounted on the rear surface of the substrate (40).

[0064] The reflective sheet (60) can cover the front of the substrate (40) and can be bonded to the substrate (40). The reflective sheet (60) can cover the second plate (411, 421), the plurality of first plates (412, 422), and the space between the plurality of first plates (412, 422). The lenses (53, see FIGS. 2 and 13) can be positioned in the holes (611) of the reflective sheet (60). Accordingly, a sufficient amount of light can be secured over a wide range in comparison to the number and positions of the light sources (51) mounted on the first substrate (40).

[0065] The reflective sheet (60) may have a rectangular plate shape. The reflective sheet (60) may be provided in at least one form. The reflective sheet (60) may include a plurality of adjacent reflective sheets (60a, 60b, 60c, 60d, 60e, 60f, 60g, 60h, 60i). The first reflective sheet (60a), the second reflective sheet (60b), the third reflective sheet (60c), the fourth reflective sheet (60d), the fifth reflective sheet (60e), the sixth reflective sheet (60f), the seventh reflective sheet (60g), the eighth reflective sheet (60h), and the ninth reflective sheet (60i) may be positioned on an imaginary horizontal plane (i.e., the XY plane).

[0066] Each of the plurality of reflective sheets (60a, 60b, 60c, 60d, 60e, 60f, 60g, 60h, 60i) can be bonded to each of the plurality of substrates (41a, 41b, 41c, 41d, 41e, 41f, 41g, 41h, 41i). The size of each of the plurality of reflective sheets can correspond to the size of each of the plurality of substrates. The size of the first reflective sheet (60a) can correspond to the size of the first substrate (41a). For example, the size of the first reflective sheet (60a) can be substantially the same as the size of the first substrate (41a).

[0067]

[0068] Referring to FIG. 6, the substrate (42) may include a first substrate (42a). The first substrate (42a) may include a plurality of first plates (422) and a second plate (421). The first substrate (42a) may have an overall fork-type shape. The plurality of first plates (422) may extend long in the horizontal direction, but may have a shape that is bent in a zigzag shape in a direction intersecting the horizontal direction. Meanwhile, the second plate (421) may be referred to as a vertical plate or a body, and the first plate (422) may be referred to as a horizontal plate or a rib.

[0069] The second plate (421) may be elongated. For example, the longitudinal direction of the second plate (421) may be parallel to the vertical direction. A connector (not shown) may be mounted on one surface of the second plate (421). The plurality of first plates (422) may be elongated in a direction intersecting the longitudinal direction of the second plate (421) from one long side of the second plate (421) and may be spaced apart from each other in the longitudinal direction of the second plate (421). The direction in which the plurality of first plates (422) are spaced apart from each other may be parallel to the longitudinal direction of the second plate (421), i.e., the vertical direction. The length (42Lb) of each of the plurality of first plates (422) may be greater than the length (42Ha) of the second plate (421). The width (42La) of the second plate (421) may be defined in the longitudinal direction of the plurality of first plates (422). The width of each of the plurality of first plates (422) may be defined in the longitudinal direction of the second plate (421) and may be smaller than the width of the second plate (421). The longitudinal direction of the plurality of first plates (422) may be referred to as the longitudinal direction of the first substrate (42a).

[0070] The first-first plate (422a), the first-second plate (422b), the first-third plate (422c), the first-fourth plate (422d), the first-fifth plate (422e), and the first-sixth plate (422f) can be arranged sequentially in the vertical direction. Meanwhile, the number of the first plates (422) can be variably determined in consideration of the size of the display device, etc.

[0071] A plurality of light sources (51) may be mounted on the second plate (421) and the plurality of first plates (422) and may be spaced apart from each other. For example, the plurality of light sources (51) may be attached or bonded on the first substrate (42). The plurality of light sources (51) may be positioned on the second plate (421) and the plurality of first plates (422) in rows and columns. The rows may be defined in the left-right direction, and the columns may be defined in the up-down direction. For example, the light source (51) may be an LED (Light Emitting Diode) chip or a package including at least one LED chip. For example, the light source (51) may be a colored LED that emits at least one color such as red, blue, green, etc., or a white LED. For example, the light source (51) may be a mini LED.

[0072] Each of the plurality of lenses (53) can cover each of the plurality of light sources (51). A receiving portion (not shown) can be formed on a lower surface of the lens (53) and can surround the light source (51). The covering portion (not shown) can form an upper surface of the lens (53). For example, the covering portion can have a dome shape or a shape in which two domes overlap. For example, the lens (53) can be a lens with asymmetric light distribution. The lens (53) can include at least one of resin, silicone, polymethyl methacrylate (PMMA), and polycarbonate (PC). Light provided from the light source (51) can be refracted or reflected by the lens (53) and spread at a wider angle than the light source (51). That is, a sufficient amount of light can be secured over a wide range in comparison to the number and position of light sources (51) mounted on the first substrate (42a). For example, the lens (53) may be a refractive lens. Meanwhile, the lens (53) may be referred to as a secondary lens.

[0073] A plurality of first plates (422) may have a shape that extends horizontally and is bent in a zigzag shape in a direction intersecting the horizontal direction. The first plates (422) may be provided with at least one first bending portion (4221) and at least one second bending portion (4222). The first bending portion (4221) may protrude convexly in a first direction intersecting the longitudinal direction of the first plates (422). For example, the lower surface of the first bending portion (4221) may protrude convexly in the downward direction, and the upper surface of the first bending portion (4221) may be concavely indented in the downward direction. The second bending portion (4222) may extend from the first bending portion (4221) and protrude convexly in a direction opposite to the first direction. For example, the upper surface of the second bending portion (4222) may be convexly protruded in the upward direction, and the lower surface of the second bending portion (4222) may be concavely indented in the upward direction. The first bending portion (4221) and the second bending portion (4222) may be alternately arranged along the longitudinal direction of the first plates (422).

[0074] At least one front surface of the first plates (422) may be provided with a fastening surface (423) for fastening the first substrate (42a) to the heat sink (83). The second plate (421) may be provided with at least one guide hole (424) and at least one guide groove (425) for guiding fastening of the first substrate (42a) to the heat sink (83).

[0075] The supporter (39) may be positioned between a plurality of first plates (422). The supporter (39) may extend in the longitudinal direction of the plurality of first plates (422), i.e., in the left-right direction.

[0076] Meanwhile, the description regarding the first substrate (42a) described above can be equally applied to the remaining substrates. The first substrate (42a) can have substantially the same shape as the remaining substrates. One substrate can be separated into any two of the substrates (42) through a cutting process. Accordingly, the manufacturing cost of the substrate (42) can be reduced.

[0077]

[0078] Referring to FIG. 7 together with FIG. 6, the heat sink (83) may include a protrusion (84). The protrusion (84) may protrude forward and may contact the fastening surface (423) of the substrate (42). By contacting and fastening the protrusion (84) and the fastening surface (423), the first plates (422) may be coupled or fixed to the heat sink (83).

[0079] The heat sink (83) may include a first guide rib (85) for guiding the first substrate (42a) to be coupled to the heat sink (83). The first guide rib (85) may protrude forward. The first guide rib (85) may extend long in the direction in which the side surfaces (4225, 5226, see FIG. 8) extending between the first bending portion (4221) and the second bending portion (4222) of the substrate (42a) extend.

[0080] The heat sink (83) may include a guide protrusion (86) to guide the first substrate (42a) to be coupled to the heat sink (83). The guide protrusion (86) may protrude forward. The guide protrusion (86) may be inserted into the guide hole (424) of the second plate (421) and fastened to the guide hole (424).

[0081] The heat sink (83) may include a second guide rib (87) to guide the first substrate (42a) to be coupled to the heat sink (83). The second guide rib (87) may protrude forward. The second guide rib (87) may extend in a long direction in which the guide groove (425) of the second plate (421) extends, and may be accommodated in the guide groove (425) to come into contact with the side surface of the second plate (421).

[0082]

[0083] Figure 8 is a perspective view showing an enlarged view of the “AA” area of ​​Figure 7.

[0084] Referring to FIG. 8 together with FIG. 7, the protrusion (84) may protrude forward from the heat sink (83). The protrusion (84) may be fastened to at least one of the first plates (422) by contacting a fastening surface (423) provided on the front surface of at least one of the first plates (422).

[0085] The protrusion (84) may include a protrusion wall (841), a catch plate (842), and a catch protrusion (843). The protrusion wall (841) may protrude forward from the heat sink (83). The protrusion wall (841) may extend in a shape corresponding to at least a portion of a convexly curved portion of the first bending portion (4221) or the second bending portion (4222). The protrusion wall (841) may extend in a round shape on an imaginary horizontal plane (i.e., an XY plane). The protrusion wall (841) may cover a side surface of the substrate (40). The catch plate (842) may extend parallel to the heat sink (83) from the upper end of the protrusion wall (841). The catch plate (842) may have a shape in which a portion of an ellipse is cut off (i.e., an elliptical fan shape). The catch (843) may protrude rearward from the rear of the catch plate (842). The catch (843) is positioned rearward of the catch plate (842), has a flat shape, and may extend parallel to the heat sink (83).

[0086] The fastening surface (423) may include an area where metal is exposed. The protrusion (84) may contact the area where metal is exposed. The rear surface of the catch plate (842) may contact the metal exposed area of ​​the fastening surface (423). By the first plate (422) being caught on the rear surface of the catch plate (842), the first plate (422) may be fastened to the protrusion (84). Specifically, the rear surface of the catch protrusion (843) provided on the catch plate (842) may be in contact with the metal exposed area of ​​the fastening surface (423). By the first plate (422) being caught on the rear surface of the catch protrusion (843), the first plate (422) may be fastened to the protrusion (84). When a ground (GND) node or a ground pattern is provided on the substrate, the ground node or the ground pattern may be electrically connected to the metal exposed area of ​​the fastening surface (423).

[0087] Accordingly, the substrate can be grounded to the heat sink (83) through the metal exposed area of ​​the fastening surface (423) and the protrusion (84). By grounding the substrate to the heat sink (83), EMI generation can be reduced.

[0088] The fastening surface (423) may be provided on at least one of the first bending portion (4221) and the second bending portion (4222) of the first plate (422). The fastening surface (423) may be provided on at least one of the convexly bent portion of the first bending portion (4221) or the convexly bent portion of the second bending portion (422).

[0089] Either the first bending portion (4221) or the second bending portion (4222) may be disposed at one end of the first plate (422). The bending portion disposed at the distal end of the first plate (422) may be referred to as an end portion (4223). The first plate (422) may include an end portion (4223), a first bending portion (4221) extending from the end portion, and a second bending portion (4222) extending from the first bending portion (4221). The fastening surface (423) may include a first fastening surface (423a) provided at the end (4223), a second fastening surface (423b) provided at the first bending portion (4221) extending from the end (4223), and a third fastening surface (423c) provided at the second bending portion (4222) extending from the first bending portion (4221). The protrusion (84) may include a first protrusion (84a) that contacts the first fastening surface (423a), a second protrusion (84b) that is spaced apart from the first protrusion (84a) and contacts the second fastening surface (423b), and a third protrusion (84c) that is spaced apart from the second protrusion (84b) and contacts the third fastening surface (423c).

[0090] However, the arrangement of the protrusion (84) and the fastening surface (423) is not limited thereto. For example, the fastening surface (423) may be provided only at the end (4223) and the first bending portion (4221) extending from the end (4223), and the protrusion (84) may be arranged to correspond to the position of the fastening surface (423).

[0091] As another example, the fastening surface (423) may be provided only on the end portion (4223), and the protrusion (84) may be positioned to correspond to the position of the fastening surface (423). As another example, the fastening surface (423) may be provided on at least one of the end portion (4223) of the first plate (422), at least one first bending portion (4221), and at least one second bending portion (4223), and the protrusion (84) may be positioned to correspond to the position of the fastening surface (423).

[0092] The heat sink (83) may be formed with at least one hole (84op) penetrating the heat sink (83) in the front-back direction. The hole (84op) may be provided at a position corresponding to the protrusion (84). The hole (84op) may be arranged at the rear of the protrusion (84). At least a portion of the hole (84op) may overlap with the catch plate (842) and / or the catch projection (843) in the front-back direction.

[0093] The catch (843) can be spaced apart from the heat sink (83) in the front-back direction. The distance (84H) by which the rear surface of the catch (843) is spaced apart from the heat sink (83) in the front-back direction can be equal to or smaller than the thickness of the first plate (422).

[0094] The rear surface of the catch (843) is spaced apart from the heat sink (83) by a distance equal to or smaller than the thickness of the first plate (422), and a hole (84op) penetrating the heat sink (83) is provided on the rear surface of the catch (843), so that the first plate (422) can be stably fastened or firmly fixed to the heat sink (83) by the catch (843). In addition, the substrate can be fastened to the heat sink (83) without using a separate structure or adhesive layer. In addition, damage that may occur to the substrate during the process of fastening the first plate (422) to the protrusion (84) by the hole (84op) can be minimized.

[0095] A plurality of light sources (51) may be arranged on the first plate (422). The plurality of light sources (51) may be arranged at the end (4223) of the first plate (422), the bent portion of the first bending portion (4221), and the bent portion of the second bending portion (4222). The plurality of light sources (51) may be arranged spaced apart from the fastening surface (423). For example, the plurality of light sources (51) may be arranged spaced apart above or below the fastening surface (423) extending in the left-right direction or the longitudinal direction of the first plate (422).

[0096] Accordingly, it is possible to prevent the light emitted from the light source (51) from being obscured by the protrusion (84) in contact with the fastening surface (423). In addition, it is possible to prevent the light source (51) from being damaged during the process of fastening the first plate (422) to the protrusion (84).

[0097] The heat sink (83) may include a first guide rib (85) to guide the substrate to be coupled to the heat sink (83). The first guide rib (85) may protrude forward. The first guide rib (85) may extend in a long direction in which the first side (4225) or the second side (5226) extends between the first bending portion (4221) and the second bending portion (4222) of the first substrate (42a).

[0098] The first substrate (42a) may include a first side (4225) extending from a convexly curved portion of the first bending portion (4221) to a recessed portion of the second bending portion (4222), and a second side (4226) extending from a convexly curved portion of the second bending portion (4222) to a recessed portion of the first bending portion (4221). The first guide rib (85) may extend in a long direction in which the first side (4225) extends or in a long direction in which the second side (4226) extends.

[0099] The first guide rib (85) may include a 1-1 guide rib (85a) having a shape corresponding to a side surface (4226) connected from the end (4223) to the first bending portion (4221) and extending long in the direction in which the side surface is extended, a 1-2 guide rib (85b) having a shape corresponding to a side surface (4225) connected from the first bending portion (4221) to the second bending portion (4223) and extending long in the direction in which the side surface is extended, and a 1-3 guide rib (not shown) having a shape corresponding to a side surface (not shown) connected from the second bending portion (4223) to the first bending portion extending to the left of the second bending portion (4223) and extending long in the direction in which the side surface is extended.

[0100] However, the arrangement of the first guide rib (85) is not limited thereto. For example, the first guide rib (85) may be provided to correspond to the number and arrangement of the protrusions (84). As another example, the first guide rib (85) may be provided to correspond to the number and arrangement of the fastening surfaces (423) of the first plate (422).

[0101] A hole (85op) may be formed on one side of the first guide rib (85) in the heat sink (83). The hole (85op) may be extended in a long direction in which the first guide rib (85) extends. The hole (85op) may be formed on one side of the side of the first guide rib (85) facing the protrusion (84). When the heat sink (83) is processed by press forming, by forming the hole (85op) on one side of the first guide rib (85), the first guide rib (85) can easily protrude to the front of the heat sink (83), and the side of the first guide rib (85) facing the protrusion (84) can be formed flat.

[0102] The first guide rib (85) may be arranged spaced apart from the protrusion (84) in the left-right direction or in the longitudinal direction of the first plate (422). The shortest distance (D1) between the end of the first guide rib (85) adjacent to the protrusion (84) and the protrusion (84) may be equal to or greater than the length (423L) of the fastening surface (423) extending in the left-right direction or in the longitudinal direction of the first plate (422).

[0103] In the process of assembling the substrate to the heat sink (83), the user places the substrate on the entire surface of the heat sink (83) so that one side between the first bending portion and the second bending portion of the first plate (422) comes into contact with the first guide rib (85), and then slides the substrate in the longitudinal direction of the first plate (422) toward the protrusion (84), so that the fastening surface (423) comes into contact with the rear surface of the catch (843), and the first plate (422) can be caught on the rear surface of the catch (843).

[0104] Accordingly, the user can be guided to place the substrate in an accurate position on the heat sink, thereby ensuring ease of assembly of the substrate to the heat sink.

[0105]

[0106] Figure 9 is a perspective view showing an enlarged view of the “BB” area of ​​Figure 7.

[0107] Referring to FIG. 9 together with FIG. 7, the heat sink (83) may include a guide protrusion (86) for guiding the substrate to be coupled to the heat sink (83). The guide protrusion (86) may protrude forward. The guide protrusion (86) may be inserted into the guide hole (424) of the second plate (421) and may be fastened to the guide hole (424).

[0108] The guide protrusion (86) may be provided to correspond to the number of guide holes (424). For example, the second plate (421) may be provided with a first guide hole (424a) arranged on the upper side in the longitudinal direction of the second plate (421) and a second guide hole (424b) arranged spaced apart from the first guide hole (424a) and on the lower side of the first guide hole (424a). The guide protrusion (86) may include a first guide protrusion (86a) arranged at a position corresponding to the first guide hole (424a) and a second guide protrusion (86b) arranged at a position corresponding to the second guide hole (424b).

[0109] The guide protrusion (86) may include a neck penetrating the guide hole (424) and a head formed on the neck. The neck may be referred to as the rear side, and the head may be referred to as the front side. The guide protrusion (86) may have a head diameter larger than the diameter of the neck. That is, the guide protrusion (86) may have a substantially circular cross-section, but the diameter of the head or the front side protruding from the guide hole (424) may be larger than the diameter of the neck or the rear side inserted into the guide hole (424) and fastened to the guide hole (424).

[0110] The guide hole (424) of the second plate (421) may include a first hole (op1) and a second hole (op2) connected to the first hole (op2) in the left-right direction or the longitudinal direction of the first plate (422). The diameter of the first hole (op1) may be equal to or larger than the diameter of the head or the front side of the guide protrusion (86). The diameter of the second hole (op2) may be equal to or larger than the diameter of the neck or the rear side of the guide protrusion (86). The diameter of the second hole (op2) may be smaller than the diameter of the head or the front side of the guide protrusion (86). The diameter of the second hole (op2) may be smaller than the diameter of the first hole (op1).

[0111] In the process of the user assembling the substrate to the heat sink (83), the guide protrusion (86) passes through the first hole (op1) of the guide hole (424), and when the substrate is then slid toward the protrusion (84), the guide protrusion (86) moves toward the second hole (op2) of the guide hole (424), so that the neck or rear side of the guide protrusion (86) can be caught in the second hole (op2).

[0112] Accordingly, the user can guide the substrate to be seated in an accurate position on the heat sink, thereby ensuring ease of assembly of the substrate to the heat sink, and the substrate can be firmly fixed to the heat sink together with the protrusions.

[0113]

[0114] Figure 10 is a perspective view showing an enlarged view of the “CC” and “DD” areas of Figure 7.

[0115] Referring to FIG. 10 together with FIG. 7, the heat sink (83) may include a second guide rib (87) for guiding the substrate to be coupled to the heat sink (83). The second guide rib (87) may protrude forward. The second guide rib (87) may extend in a long direction in which the guide groove (425) of the second plate (421) extends, and may be accommodated in the guide groove (425) to come into contact with the side surface of the second plate (421).

[0116] The second plate (421) may include a first side extending in the longitudinal direction of the first plates (422) and provided on the upper side of the second plate (421), and a second side extending parallel to the first side and provided on the lower side of the second plate (421). The second side may be opposite to the first side. The guide groove (425) may be recessed into the inside of the second plate (421) at the first side or the second side, and may extend long in the longitudinal direction of the first plates (422). The guide groove (425) may be provided on at least one of the first side and the second side. For example, the guide groove (425) may include a first guide groove (425a) formed on the first side, and a second guide groove (425b) formed on the second side.

[0117] The second guide rib (87) may be provided to correspond to the number of guide grooves (425). For example, the second guide rib (87) may include a second-first guide rib (87a) that extends long in the direction in which the first guide groove (425a) extends and a second-second guide rib (87b) that extends long in the direction in which the second guide groove (425b) extends.

[0118] A hole (87op) may be formed on one side of the second guide rib (87) in the heat sink (83). The hole (87op) may be extended in a long direction in which the second guide rib (87) extends. The hole (87op) may be formed on one side of the side of the second guide rib (87) facing the second plate (421). When the heat sink (83) is processed by press forming, by forming the hole (87op) on one side of the second guide rib (87), the second guide rib (87) can easily protrude to the front of the heat sink (83), and the side of the second guide rib (87) facing the second plate (421) can be formed flat.

[0119] A plurality of second guide ribs (87) may be arranged to be misaligned with each other in the vertical direction or in the longitudinal direction of the second plate (421). For example, the second-first guide rib (87a) and the second-second guide rib (87b) may be arranged to be misaligned with each other in the longitudinal direction of the second plate (421).

[0120] When the user assembles the substrate to the heat sink (83), the substrate is placed in front of the heat sink (83) so that the first guide groove (425a) and the second guide groove (425b) of the second plate (421) are adjacent to or in contact with the second-first guide rib (87a) and the second-second guide rib (87b), respectively, and then the substrate is slid in the longitudinal direction of the first plate (422) toward the protrusion (84), so that the first guide groove (425a) and the second guide groove (425b) can move along the second-first guide rib (87a) and the second-second guide rib (87b).

[0121] Accordingly, the user can be guided to place the substrate in an accurate position on the heat sink, thereby ensuring ease of assembly of the substrate to the heat sink.

[0122]

[0123] Referring to FIG. 11, the substrate (41) may include a first substrate (41a). The first substrate (41a) may include a plurality of first plates (412) and a second plate (411). The first substrate (41a) may have an overall fork-type shape. Meanwhile, the second plate (411) may be referred to as a vertical plate or body, and the first plate (412) may be referred to as a horizontal plate or rib.

[0124] The second plate (411) may be elongated. For example, the longitudinal direction of the second plate (411) may be parallel to the vertical direction. A connector (not shown) may be mounted on one surface of the second plate (411). A plurality of first plates (412) may be elongated in a direction intersecting the longitudinal direction of the second plate (411) from one long side of the second plate (411) and may be spaced apart from each other in the longitudinal direction of the second plate (411). The direction in which the plurality of first plates (412) are spaced apart from each other may be parallel to the longitudinal direction of the second plate (411), i.e., the vertical direction. The length of each of the plurality of first plates (412) may be greater than the length of the second plate (411). The width of the second plate (411) may be defined in the longitudinal direction of the plurality of first plates (412). The width of each of the plurality of first plates (412) can be defined in the longitudinal direction of the second plate (411) and can be smaller than the width of the second plate (411). Meanwhile, the longitudinal direction of the plurality of first plates (412) can be referred to as the longitudinal direction of the first substrate (41a).

[0125] The 1-1 plate (412a), the 1-2 plate (412b), the 1-3 plate (412c), the 1-4 plate (412d), the 1-5 plate (412e), the 1-6 plate (412f), the 1-7 plate (412g), the 1-8 plate (412h), the 1-9 plate (412i), the 1-10 plate (412j), the 1-11 plate (412k), the 1-12 plate (412l), the 1-13 plate (412m), the 1-14 plate (412n), and the 1-15 plate (412o) can be arranged sequentially in the vertical direction.

[0126] A plurality of light sources (51) can be mounted on the second plate (411) and a plurality of first plates (412) and can be spaced apart from each other.

[0127] The supporter (39) may be positioned between a plurality of first plates (412). The supporter (39) may extend in the longitudinal direction of the plurality of first plates (412), i.e., in the left-right direction.

[0128] Meanwhile, the description regarding the first substrate (41a) described above can be equally applied to the remaining substrates (41b, 41c, 41d, 41e, 41f, 41g, 41h, 41i). The first substrate (41a) can have substantially the same shape as the remaining substrates. One substrate can be separated into any two of the substrates (41) through a cutting process. Accordingly, the manufacturing cost of the substrate (41) can be reduced.

[0129]

[0130] Figure 12 is a drawing showing an enlarged view of the “EE” area of ​​Figure 11.

[0131] Referring to FIG. 12 together with FIG. 11, the heat sink (83) may include a protrusion (88). At least one of the first plates (412) may be provided with a fastening portion (413). The fastening portion (413) may be provided at an end of at least one of the first plates (412). The protrusion (88) may protrude forward and be fastened to the fastening portion (413). By fastening the protrusion (88) and the fastening portion (413) to each other, the first plates (412) may be coupled or fixed to the heat sink (83).

[0132] The heat sink (83) may include a guide protrusion (not shown) to guide the first substrate (41a) to be coupled to the heat sink (83). The guide protrusion may protrude forward. The guide protrusion may be inserted into at least one guide hole (414) provided in the second plate (411) and fastened to the guide hole (414).

[0133] The protrusion (88) may include a protrusion wall (881) protruding forward from the heat sink (83) and a catch plate (882) extending parallel to the heat sink (83) from the upper end of the protrusion wall (881). The catch plate (882) may be spaced apart from the heat sink (83) at the front of the heat sink (83). The space between the rear surface of the catch plate (882) and the heat sink (83) may be referred to as an insertion groove (88g).

[0134] The fastening portion (413) may be formed of metal. The fastening portion (413) may include a fastening plate (4131) and a fastening protrusion (4142). The fastening plate (4131) may protrude from one end of the first plate (422) in the longitudinal direction of the first plate (422). A hole (4133) may be formed inside the fastening plate (413). The fastening protrusion (4142) may be located at an end of an extension extending from one side of the hole (4133) into the interior of the hole (4133). The fastening protrusion (4142) may protrude forward. The fastening protrusion (4142) may be formed by bending a metal plate sharply upward. The fastening protrusion (4142) may be formed integrally with the extension extending into the interior of the hole (4133).

[0135] The fastening portion (413) can be fastened to the protrusion (88) by having at least a portion thereof inserted into the protrusion (88). The fastening projection (4142) of the fastening portion (413) can be inserted into the insertion groove (88g). The height at which the fastening projection (4142) protrudes forward from the fastening plate (4131) can be equal to or greater than the height (88H) of the insertion groove (88g). The height (88H) of the insertion groove (88g) can be equal to or less than the thickness (412T) of the first plates (412). The front end of the fastening projection (4142) can contact the rear surface of the catch plate (882) within the insertion groove (88g) and be caught on the rear surface. By the fastening portion (413) being caught on the rear surface of the catch plate (882), the first plate (412) can be fixed to the heat sink (83). When a ground (GND) node or ground pattern is provided on the substrate, the ground node or ground pattern can be electrically connected to the fastening portion (413).

[0136] Accordingly, the substrate can be firmly fixed to the heat sink through the protrusions and fastening portions. Furthermore, the substrate can be fixed to the heat sink without using a separate structure or adhesive layer.

[0137] Additionally, the substrate can be grounded to the heat sink (83) through the fastening portion (413) and the protrusion (88). By grounding the substrate to the heat sink (83), EMI generation can be reduced.

[0138] A plurality of light sources (51) may be arranged on the first plate (412). Among the plurality of light sources (51), the light source (51) arranged closest to the end of the first plate (412) may be arranged spaced apart from the fastening portion (413).

[0139] Accordingly, it is possible to prevent the light emitted from the light source (51) from being obscured by the protrusion (88) combined with the fastening portion (413). In addition, it is possible to prevent the light source (51) from being damaged during the process of fastening the first plate (412) to the protrusion (88).

[0140]

[0141] Referring to FIGS. 13 and 14, a fastening portion (413) may be provided between adjacent first plates (412). The fastening portion (413) may be coupled or fixed to each of the adjacent first plates (412). The right side of the fastening plate (4131) of the fastening portion (413) may be arranged parallel to the ends of the first plates (412). The upper side of the fastening portion (413) may be coupled with the lower side of the first plate located above the fastening portion (413), and the lower side of the fastening portion (413) may be coupled with the upper side of the first plate located below the fastening portion (413).

[0142] The protrusion (88) protrudes forward and can be fastened to the fastening portion (413).

[0143] The fastening portions (413) may be arranged between at least some of the adjacent first plates (412). For example, referring to FIG. 13, two fastening portions (413) may be arranged between three adjacent first plates (412). That is, a smaller number of fastening portions (413) than the number of spaces between the adjacent first plates (412) may be arranged on the substrate. For example, referring to FIG. 14, the fastening portions (413) may be arranged between all adjacent first plates (412). The fastening portions (413) may be aligned in the vertical direction or along the width direction of the first plates (412).

[0144] In the first plate (412), a light source (51) may not be placed in an area corresponding to an area where the fastening portions (413) are aligned vertically. Among the multiple light sources (51) placed on the first plate (412), the light source (51) placed closest to the end of the first plate (412) may be placed at a distance from the end of the first plate (412) that is greater than the length of the fastening portion (413) defined in the left-right direction.

[0145] Accordingly, it is possible to prevent the light emitted from the light source (51) from being obscured by the protrusion (88) combined with the fastening portion (413). In addition, it is possible to prevent the light source (51) from being damaged during the process of fastening the first plate (412) to the protrusion (88).

[0146]

[0147] As described above, according to at least one of the embodiments of the present disclosure, a display device capable of firmly fixing a substrate to a heat sink or frame can be provided.

[0148] According to at least one of the embodiments of the present disclosure, a display device can be provided in which a substrate can be secured to a heat sink or frame without using a separate structure or adhesive layer.

[0149] According to at least one of the embodiments of the present disclosure, a display device can be provided that can ensure ease of assembly of a substrate to a heat sink or frame.

[0150] According to at least one of the embodiments of the present disclosure, a display device can be provided that can minimize damage to a substrate that may occur during the substrate assembly process.

[0151] According to at least one of the embodiments of the present disclosure, a display device capable of strengthening grounding of a substrate and reducing EMI generation can be provided.

[0152]

[0153] Referring to FIGS. 1 to 14, a display device (1) according to one aspect of the present disclosure includes: a display panel (10); a frame (80) positioned at the rear of the display panel; a substrate (40) positioned between the display panel and the frame and coupled to the frame; and a heat sink (83) positioned between the substrate and the frame and coupled to the substrate and the frame; wherein the substrate (40) includes a plurality of first plates (422) that are elongated and spaced apart from each other; and a fastening surface (423) provided on the front surface of at least one of the plurality of first plates (422) and including a region where metal is exposed; and the heat sink (83) may include at least one protrusion (84) that protrudes forward and contacts the fastening surface (423) to be fastened to at least one of the first plates (422).

[0154] The above protrusion (84) can come into contact with the metal exposure area.

[0155] The first plates (422) include at least one first bending portion (4221) that is convexly bent in a first direction intersecting the longitudinal direction of the first plates (422); and at least one second bending portion (4222) that extends from the first bending portion (4221) and is convexly bent in a direction opposite to the first direction; wherein the first bending portion (4221) and the second bending portion (4222) are alternately arranged along the longitudinal direction of the first plates (422), and the fastening surface (423) may be provided on at least one of the convexly bent portion of the first bending portion (4221) and the convexly bent portion of the second bending portion (4222).

[0156] The above fastening surface (423) includes a first fastening surface (423a) provided at an end portion (4223) forming an end of the first plates (422); a second fastening surface (423b) provided at the first bending portion (4221) extending from the end portion (4223); and a third fastening surface (423c) provided at the second bending portion (4222) extending from the first bending portion (4221), and the protrusion (84) includes a first protrusion (84a) that contacts the first fastening surface (423a); a second protrusion (84b) that is spaced apart from the first protrusion (84a) and contacts the second fastening surface (423b); And it may include a third protrusion (84c) that is spaced apart from the second protrusion (84b) and comes into contact with the third fastening surface (423c).

[0157] The above protrusion (84) includes a protrusion wall (841) that protrudes from the heat sink (83) and covers a side surface of the substrate (40); and a catch plate (842) that extends parallel to the heat sink (83) from one end of the protrusion wall (841), and at least a part of the fastening surface (423) can contact the rear surface of the catch plate (842).

[0158] The above protrusion (84) includes a hook (843) that protrudes rearward from the rear surface of the hook plate (842), and the distance at which the rear surface of the hook (843) is spaced from the heat sink (83) in the front-back direction may be equal to or smaller than the thickness of the first plates (422).

[0159] The above heat sink (83) is provided with a hole (84op) penetrating the heat sink (83) in the front-back direction, and a part of the hole (84op) can overlap with the catch plate (842) in the front-back direction.

[0160] It further includes a plurality of light sources (51) positioned at the bent portion of the first bending portion (4221) and the bent portion of the second bending portion (4222) and spaced apart from each other, and the plurality of light sources (51) can be spaced apart from the fastening surface (423).

[0161] The substrate (40) includes a first side (4225) extending from a convexly curved portion of the first bending portion (4221) to a recessed portion of the second bending portion (4222), and a second side (4226) extending from a convexly curved portion of the second bending portion (4222) to a recessed portion of the first bending portion (4221), and the heat sink (83) may further include a first guide rib (85) protruding forward and extending in a direction in which the first side (4225) extends or in a direction in which the second side (4226) extends.

[0162] The above fastening surface (423) extends in the longitudinal direction of the first plates (422), and the shortest distance (D1) between the first guide rib (85) and the protrusion (84) in the longitudinal direction of the first plates (422) may be equal to or greater than the length of the fastening surface (423).

[0163] The above substrate (40) further includes a second plate (421) having a guide hole (424) and extending in a direction intersecting the longitudinal direction of the first plates (422) and connected to one end of the first plates (422); and the heat sink (83) may further include a guide protrusion (86) protruding forward and fastened to the guide hole (424).

[0164] The above guide protrusion (86) includes a neck (861) penetrating the guide hole (424); and a head (862) formed on the neck (861), the diameter of the head (862) being larger than the diameter of the neck (861), the guide hole (424) including a first hole (op1) having a diameter equal to or larger than the diameter of the head (862) of the guide protrusion (86); and a second hole (op2) connected to the first hole (op1) in the longitudinal direction of the first plates (422) and having a diameter smaller than the diameter of the first hole (op1), and the neck (861) of the guide protrusion (86) can be detachably caught on the second hole (op2).

[0165] The second plate (421) further includes a first side extending in the longitudinal direction of the first plates (422); a second side facing the first side and extending in the longitudinal direction of the first plates (422); and a guide groove (425) provided on the first side or the second side and recessed in the inward direction of the second plate (421) in the first side or the second side and extending in the longitudinal direction of the first plates (422), and the heat sink (83) may further include a second guide rib (87) protruding forward and extending in the direction in which the guide groove (425) extends.

[0166] The second guide rib (87) is arranged on the first side and the second side, and the second guide rib (87a) arranged on the first side and the second guide rib (87b) arranged on the second side can be arranged to be misaligned with each other in the longitudinal direction of the second plate (421).

[0167]

[0168] Any or all of the embodiments of the present disclosure described above are not mutually exclusive or distinct. Any or all of the embodiments of the present disclosure described above may have their respective components or functions combined or used together.

[0169] For example, it means that a configuration A described in a particular embodiment and / or drawing can be combined with a configuration B described in another embodiment and / or drawing. That is, even if a combination between configurations is not directly described, it means that a combination is possible, except in cases where a combination is described as impossible.

[0170] The above detailed description should not be construed as limiting in any respect and should be considered illustrative only. The scope of the present invention should be determined by a reasonable interpretation of the appended claims, and all modifications within the equivalent scope of the present invention are intended to be included within the scope of the present invention.

Claims

1. Display panel; A frame positioned at the rear of the above display panel; a substrate positioned between the display panel and the frame and coupled to the frame; and A heat sink positioned between the substrate and the frame and coupled to the substrate and the frame; The above substrate is, a plurality of first plates, elongated and spaced apart from each other; and A fastening surface is provided on the front surface of at least one of the plurality of first plates and includes a region where metal is exposed, The above heat sink, A display device comprising at least one protrusion that protrudes forward and contacts the engaging surface to engage with at least one of the first plates.

2. In paragraph 1, The above protrusion is a display device in contact with the above metal exposure area.

3. In paragraph 1, The above first plates, At least one first bending portion convexly bent in a first direction intersecting the longitudinal direction of the first plates; and At least one second bending portion extending from the first bending portion and convexly bent in a direction opposite to the first direction; The first bending portion and the second bending portion are alternately arranged along the longitudinal direction of the first plates, The above-mentioned connection surface is, A display device provided on at least one of the convexly curved portion of the first bending portion and the convexly curved portion of the second bending portion.

4. In paragraph 3, The above-mentioned connection surface is, A first fastening surface provided at an end portion forming a distal end of the first plates; A second fastening surface provided on the first bending portion extending from the above end; and Including a third fastening surface provided on the second bending portion extending from the first bending portion, The above protrusion is, A first protrusion in contact with the first fastening surface; A second protrusion spaced apart from the first protrusion and in contact with the second fastening surface; and A display device including a third protrusion spaced apart from the second protrusion and in contact with the third fastening surface.

5. In paragraph 3, The above protrusion is, A protruding wall protruding from the heat sink and covering a side surface of the substrate; and Including a catch plate extending parallel to the heat sink from one end of the above protrusion wall, A display device wherein at least a portion of the above-described fastening surface is in contact with the rear surface of the above-described fastening plate.

6. In paragraph 5, The above protrusion is, Including a catch projection protruding rearward from the rear of the above catch plate, A display device in which the distance between the rear surface of the above-mentioned stumbling block and the heat sink in the front-back direction is equal to or smaller than the thickness of the above-mentioned first plates.

7. In paragraph 5, The above heat sink is provided with a hole penetrating the heat sink in the front-back direction, A display device in which a portion of the above hole overlaps the above-described hanging plate in the front-rear direction.

8. In paragraph 3, It further includes a plurality of light sources positioned at the bent portion of the first bending portion and the bent portion of the second bending portion and spaced apart from each other; The above multiple light sources are, A display device spaced apart from the above-mentioned joining surface.

9. In paragraph 3, The above substrate is, A first side extending from the convexly bent portion of the first bending portion to the indented portion of the second bending portion, Including a second side extending from the convexly bent portion of the second bending portion to the indented portion of the first bending portion, The above heat sink, A display device further comprising a first guide rib that protrudes forward and extends in a direction in which the first side extends or in a direction in which the second side extends.

10. In paragraph 9, The above-mentioned fastening surface extends in the longitudinal direction of the first plates, A display device in which the shortest distance between the first guide rib and the protrusion in the longitudinal direction of the first plates is equal to or greater than the length of the fastening surface.

11. In paragraph 1, The above substrate is, It further includes a second plate having a guide hole, extending in a direction intersecting the longitudinal direction of the first plates, and connected to one end of the first plates; The above heat sink, A display device further comprising a guide projection protruding forward and fastened to the guide hole.

12. In paragraph 11, The above guide protrusions are, A neck penetrating the above guide hole; and Including a head formed on top of the above neck, The diameter of the above head is larger than the diameter of the above neck, The above guide hole is, A first hole having a diameter equal to or larger than that of the head of the above guide projection; and A second hole is connected to the first hole in the longitudinal direction of the first plates and has a diameter smaller than that of the first hole, The neck of the above guide protrusion is, A display device that can be detachably hung in the second hole.

13. In paragraph 11, The second plate above, A first side extending in the longitudinal direction of the first plates; a second side opposite to the first side and extending in the longitudinal direction of the first plates; and Further comprising a guide groove provided on the first side or the second side, and recessed in the inner direction of the second plate on the first side or the second side and extending in the longitudinal direction of the first plates, The above heat sink, A display device further comprising a second guide rib that protrudes forward and extends in a direction in which the guide groove extends.

14. In paragraph 13, The above second guide rib, are arranged on the first side and the second side, A display device in which the second guide rib arranged on the first side and the second guide rib arranged on the second side are arranged to be misaligned with each other in the longitudinal direction of the second plate.

Images